Davidson began coaching her brothers hockey team in 1978 and eventually graduated to women's hockey in 1989. As a coach, she led Team Alberta at the 1991, 1995 and 1999 Canada Winter Games.[5] As a result, she was asked to be an assistant coach for the Canadian national women's hockey team at the 2002 Winter Olympics.[6] After her Olympic Games experience where Team Canada won gold, she had caught the attention of Cornell University who offered her a coaching position.[7]
As head coach at Cornell, she was appointed Head Coach of Team Canada for the 2004–2005 season,[8] the 2006 Winter Olympics, where Canada won another gold medal,[9] and at the 2010 Winter Olympics.[10] Her role in the Olympics earned her various honours including being inducted into the Alberta Sports Hall of Fame[5] and the Canadian Olympic Hall of Fame.[11] She was also awarded the 2010 Jack Donohue Coach of the Year Award and named to the Canadian Association for the Advancement of Women and Sport and Physical Activity's most influential women list.[12] Subsequently she served as director of the Canadian women's team that won gold at the 2014 Sochi Winter Olympics.[13] She was inducted into the builder category of the IIHF Hall of Fame at the medal ceremony of the 2024 IIHF World Championship.[14][15][16]